Scientists Discover Air Pollution in Peru From Almost 500 Years Ago
February 09, 2015
Humans have been poisoning the atmosphere since well before the Industrial Revolution.
What Beijing Abandoning Coal Means for the Rest of the World
August 05, 2014
Imagine how much that will improve air quality.
How Many People in Your State Are Dying From Downwind Air Pollution?
December 09, 2013
This map estimates the toll.